Research Article

Analysis of the Concentration of Heavy Metals in Khat Grown in Meru County and the Assessment of Their Associated Health Risks

Table 5

The THQ and HI values of investigated heavy metals with respect to khat consumption.

Noncarcinogenic parameterTHQHI

Heavy metalCrCuNiFeCdPbā€‰
Values0.0150.0560.0270.2011.613.224.90